Deformation Behavior in Die Forging of Aluminum Foam Sandwich

Abstract

The aluminum foam sandwich (AFS) was examined its formability in die forging. The AFS specimens with different lengths were prepared by roll and bonding precursor process and the AFS specimens were compressed with single or double projected dies. The foam core in the AFS is successfully compressed only in a part under a die projection even at room temperature. However some parts of AFS specimens near the foot of a projection and between the double projections were deformed without touching with the die faces. In the case of single projection die, the length of AFS specimens affected greatly the compressive strain near the foot edges of projections. However, in the case of double projection die, the strain of AFS between the projections was not affected by the specimens’ length.